Key holder



FIG. 1 is a front elevational view of a key holder showing my new design, the rear elevational view being a mirror image thereof;

FIG. 2 is a left end elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a key holder, as shown and described. 